[ Jason Jacobs of RunKeeper (left) and Ben Rubin of ZEO (right) will be guests on TWiST #192 live at 1pm ] Founder of RunKeeper Jason Jacobs and ZEO co-founder Ben Rubin will join This Week in Startups #192 today for a special Health and Fitness Devices episode live at 1pm.

Jacobs founded FitnessKeeper, which maintains RunKeeper to track data from fitness related activities, in 2008. RunKeeper released an impressive infographic yesterday [ see our story ] that says that more than 6.4M people have used the program to track their physical activities for a total of 32B burned calories.

Rubin co-founded Zeo with a group of his college friends at Brown University with the goal of discovering new scientific ways to improve people's lives through the quality of their sleep. Their first product, the ZEO Personal Sleep Manager, launched in 2009 and recently launched a mobile version for iOS and Android.